Please help! No links pls btw. (Help is appreciated) Also please ignore how it says Kyle traveled more when it can also be Julie. Thank you!

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Given the functions, f(x) = 2x^2 - 1 and g(x) = 5x, find f(g(x)) and g(f(

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question